Senior Python Engineer- GenAI

3.8

Job Type   /   Job Level

Full-time   /   Others/Any

Job Location

Stockholm, Stockholm County, Sweden

Salary Range

€ 63,236 - 70,825 (Annually)

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Who You Are

A solid engineer with hands-on experience in Python and FastAPI, ideally in platform or infrastructure contexts.
Experienced with AI/LLM systems — including evaluation frameworks and observability tooling.
Familiar with Kubernetes and passionate about building reliable, scalable AI infrastructure.
Eager to contribute to engineering culture and help move Klarna forward on the GenAI frontier.

What You Will Do

Manage and operate Klarna's AI Gateway, ensuring reliable, low-latency access to AI models at scale.
Onboard teams to the AI Gateway, configure model access, and support diverse use cases across technical levels.
Adapt and improve evaluation tooling for LLM applications using LangSmith.
Own tooling and processes that enable safe, compliant, and efficient GenAI use across the organisation.
Document operational procedures, respond to incidents, and ensure platform stability.
Drive knowledge sharing through structured learning programmes and help standardise AI content across the org.

Awesome to have

Experience building or operating AI Gateways or similar ML infrastructure at scale.
Familiarity with LangSmith or other LLM observability and evaluation platforms.
Background in enablement, developer education, or internal platform evangelism.
Prior experience shaping team practices or contributing to engineering culture at a fast-moving company.

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